Monkeys engage in prostitution.
Chimps who achieve troupe dominance by fighting dirty are treated with contempt by other chimps (they have to individually intimidate other chimps into the usual gestures of subordination every single time, instead of everyone getting with the program the way they do when they respect the dominant male).
Chimps have engaged in horrible extortion.
I think the original contention here was that uplifted animals would not act in the negative animalistic ways I described earlier because they would be intelligent, and therefore choose not to act in those ways. I disagree because I think the examples of intelligence, both in animals and human beings, being used to make animalistic behavior more gainful are too numerous to count (and too disgusting to describe here).
Killer whales are not called consideration-of-others whales for a reason, despite their high intelligence.
I think the problem is that animals would still have their animal impulses, instincts, reflexes, and natures, despite their uplifted intelligence. Even human beings still have a pretty powerful primal nature, and a lot of people have trouble controlling it. IMO uplifted animals would endure a lot of suffering because their uplifted intelligence would allow them to see and understand the conflict between their animal nature, their intellect, and the human culture they're expected to adhere to, while they simply have to endure it. Really, I think the only role intelligence would play is to allow them to understand what was going on with them. They would be in a constant struggle moderate their natural behavior to deal with human culture. Behavior moderation, IMO, isn't so much intelligence as it is pain/pleasure, feels-good-man/feels-bad-man, and empathy/sympathy. Intelligence helps with thinking through the possible consequences of one's actions, like how committing an armed home invasion while on parole while wearing an ankle bracelet will probably lead to negative consequences. Still, people do things like this. I think uplifted animals would have an even harder time with thinking through things and dealing with impulse control.